"If we're thinking about old civilizations, those that formed a long time ago and there were stars and planets around long before Earth even existed, then these are going to be towards the center of the galaxy. That is the place to look if you think there are ancient civilizations that have made beacons or some other way of attracting our attention."

Next Quote

Here the artist is, as it were, an archaeologist, uncovering deeper and deeper strata as he works, recovering not an ancient civilization, but something as yet unborn, unseen, unheard, except by the inner eye, the inner ear. He is not just removing apparent surfaces from some external object, he is removing apparent surface from the Self, revealing his original nature.

— Stephen Nachmanovitch